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212223221310 = 23579439120393
BaseRepresentation
bin1100010110100101111…
…1010101111000111110
3202021210012102122220210
43011221133111320332
511434113121040220
6241254412053250
721222042421512
oct3055137257076
9667705378823
10212223221310
11820045262a1
1235169164226
13170217ab6c9
14a3b3608142
1557c15d96e0
hex31697d5e3e

212223221310 has 64 divisors (see below), whose sum is σ = 515925780480. Its totient is φ = 55861029120.

The previous prime is 212223221281. The next prime is 212223221321. The reversal of 212223221310 is 13122322212.

It is a super-2 number, since 2×2122232213102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10396474 + ... + 10416866.

It is an arithmetic number, because the mean of its divisors is an integer number (8061340320).

Almost surely, 2212223221310 is an apocalyptic number.

212223221310 is an abundant number, since it is smaller than the sum of its proper divisors (303702559170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212223221310 is a wasteful number, since it uses less digits than its factorization.

212223221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24873.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212223221310 its reverse (13122322212), we get a palindrome (225345543522).

The spelling of 212223221310 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 4391 8782 13173 20393 21955 26346 40786 43910 61179 65865 101965 122358 131730 203930 305895 346889 611790 693778 1040667 1611047 1734445 2081334 3222094 3468890 4833141 5203335 8055235 9666282 10406670 16110470 24165705 48331410 89545663 179091326 268636989 447728315 537273978 895456630 1343184945 2686369890 7074107377 14148214754 21222322131 35370536885 42444644262 70741073770 106111610655 212223221310